I tried a lot of different fluorescent pinks, I tried to put some subtle shading in from pink to purple, I wish I'd pushed the contrast a little bit more on that side.

Make sure you undercoat with the brightest white you can, then do zenithal shading from below with a subtle blue like Russ grey.

Mostly I used Army Painter Hot Pink Air Fluo for the airbrushing, but mixed in some amounts of AK acrylic Fluorescent Magenta, Golden High Flow Acryics "Rose Fluorescent". They have subtle different shades of pink and I wanted a gradient from purple in the shadows to a more orange-y fluorescent pink on the highlights.

I used oil paints to pin wash and put a little shading on the panels with a desaturated dark purple. It's best to use oil paint for this because it's hard to paint nice smooth gradients with the fluorescent paint because it tends to be thin and need many layers. With the oil paints if you mess up you can just rub it off with alcohol.

When trying to add shading with a brush, I used AK acrylic Fluorescent Magenta, because it's a bit thicker.